Research on the Solidification Process of Explosive Materials Based on Phased Array Ultrasonic Testing

QIN Zhiqi; GAO Xin; ZHOU Qianmin; HUANG Kerui; GUO Baoqiao; CHEN Pengwan

doi:10.12382/bgxb.2026.0466

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Research on the Solidification Process of Explosive Materials Based on Phased Array Ultrasonic Testing

更新时间：2026-09-07

- Research on the Solidification Process of Explosive Materials Based on Phased Array Ultrasonic Testing
- Acta Armamentarii (2026)
- 作者机构：
  
  1.北京理工大学机电学院，北京 10081
  2.北京理工大学材料学院，北京 10081
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2026.0466
  CLC： TJ55
- Received：19 May 2026，
  
  Revised：2026-08-31，
  
  Accepted：04 June 2026，
- 稿件说明：
移动端阅览
QIN Zhiqi, GAO Xin, ZHOU Qianmin, et al. Research on the Solidification Process of Explosive Materials Based on Phased Array Ultrasonic Testing[J/OL]. Acta Armamentarii, 2026.
DOI：

QIN Zhiqi, GAO Xin, ZHOU Qianmin, et al. Research on the Solidification Process of Explosive Materials Based on Phased Array Ultrasonic Testing[J/OL]. Acta Armamentarii, 2026. DOI： 10.12382/bgxb.2026.0466.

摘要

熔铸装药方法工艺简单、生产成本低，适用各种形状壳体，因此适合大批量生产，成为目前国内外在军事上主要应用的装药方法。含能材料冷却凝固过程是核心过程，对装药质量具有重要影响。为直观获取含能材料凝固过程信息，开展含能材料凝固过程的在线测量研究。采用相控阵超声测量方式，使用2.25 MHz，64阵列线性相控阵探头实现了含能材料及其替代物的自然冷却凝固过程测量。对原始数据进行解析处理后，得到了凝固过程固液界面信息，从而推断得到含能材料的实际凝固过程。实验结果表明，试样在凝固过程中固液界面位移为凝固时间的平方根函数。结合实验条件和数据处理结果，对含能材料和其相似物的凝固过程进行了分析，发现试样不同位置的散热性能和容器结构导致的边界效应是影响固液界面位移函数的两个关键因素。这项新方法为熔铸过程药液的凝固机理和各项参数的影响机制研究提供了新的思路。

Abstract

The melt-casting charge method offers a simple process

low production costs

and adaptability to various shell shapes

making it suitable for mass production. As a result

it has become the primary charging method currently applied in military contexts both domestically and internationally. The cooling and solidification process of energetic materials is the core process and has a significant impact on the quality of the propellant. To obtain intuitive information about the cooling and solidification process of energetic materials

an online measurement study of the cooling and solidification process of energetic materials was carried out. Using a phased array ultrasonic measurement method and a 2.25 MHz

64-array linear phased array probe

the natural cooling and solidification process of energetic materials and their substitutes was measured. After analyzing and processing the original data

we obtained the information about the solid-liquid interface during the solidification process

thereby inferring the actual solidification process of the energetic material. During the solidification process

the displacement of the solid-liquid interface is an square root function of the solidification time. Combining the experimental conditions and data processing results

the solidification process of energetic materials and their similar substances was analyzed. It was found that the two key factors influencing the solid-liquid interface displacement function are the heat dissipation performance at different positions of the sample and the boundary effect caused by the container structure. This new method provides new ideas for the study of the solidification mechanism of the liquid in the melting and casting process and the influence mechanism of various parameters.

关键词

Keywords

references

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